Watch Movements

Watch Movements for Replacement & New Builds

Source watch movements for repairs, custom builds and small-batch assembly. Sofly offers quartz and mechanical watch movements, including automatic calibers, from Miyota/Citizen, TMI/Seiko, Ronda, ETA, Sellita and other manufacturers.

Whether you need an exact caliber replacement or a movement for a new watch, our selection helps you compare available options by manufacturer, specifications and function.

Types of Watch Movements Available

Sofly supplies different types of watch movements for everyday repairs, professional servicing and custom assembly.

• Quartz watch movements: Battery-powered movements known for accuracy and low maintenance. Available in different sizes and display configurations.
• Manual-winding mechanical movements: Spring-driven movements that require winding by hand. Suitable for watches designed around traditional mechanical calibers.
• Automatic watch movements: Mechanical movements that use a rotor to wind the mainspring through wrist movement. Common in modern mechanical watches and custom builds.

For an existing watch, the original caliber and its specifications should guide your selection. For a new build, consider movement type alongside the case, dial, hands and intended functions.

Watch Movement Brands & Calibers

Browse our selection by manufacturer to narrow your search:

• Miyota / Citizen movements – Quartz and automatic calibers for repairs and new builds.
• TMI / Seiko movements – Popular quartz and automatic movements, including the NH series.
• Ronda movements – Swiss quartz movements for different watch designs and display functions.
• ETA quartz movements and ETA mechanical movements – Options for Swiss quartz and mechanical replacements.
• Sellita movements – Swiss mechanical calibers for selected repair and assembly requirements.

Our catalog also includes movements from Soprod, ISA, Sunon, Epson and other manufacturers. Availability and specifications vary by caliber.

Why Buy Watch Movements from Sofly?

Movement choices across brands and calibers

Find watch movements across multiple manufacturers and caliber families in one catalog. Our range supports common replacements and more specialized repair requirements, helping watchmakers and repair shops reduce separate supplier searches.

Complete movements and individual repair components

Replacing the entire movement is not always necessary. When a repair requires a specific internal component, explore our watch movement parts. Having access to complete movements and individual parts gives you more sourcing options for different repair needs.

Parts and tools for the whole build

Source movements alongside watch hands, watch dials, other watch parts and watch repair tools. Combining purchases can simplify workshop replenishment and reduce time spent sourcing components separately.

Competitive pricing with selected bulk discounts

Our China-based supply chain supports competitive pricing across our movement range. Quantity discounts are available on selected products, helping repair shops and watch builders manage costs for repeat repairs and batch assembly. Contact us with your required calibers, variants and quantities to discuss available pricing.

How to Choose the Right Watch Movement

Choosing a watch movement involves more than matching its brand or diameter. Before ordering, check the specifications that affect installation and operation.

1. Identify the exact caliber

Look for the caliber reference on the existing movement or in the watch’s technical documentation. An exact match is usually the safest starting point for a replacement.

2. Check dimensions and fitting requirements

Confirm the movement diameter, thickness, stem height, dial attachment and hand-fitting sizes. These details determine whether the movement can work with your existing case, dial and hands.

3. Compare functions and movement variants

Check the date and day displays, hand configuration, calendar position and other functions. Movements within the same family may have different versions that are not directly interchangeable.

4. Confirm compatibility before ordering

For a new build, select the movement together with compatible components. For a replacement, avoid assuming that similar dimensions or caliber families guarantee a direct fit. If uncertain, send us your movement reference and relevant specifications.

Watch Movement FAQs

1. Are watch movements interchangeable?

Not automatically. Even movements from the same manufacturer may differ in stem height, dial attachment, hand fittings, date position or other specifications. Check the exact caliber and required dimensions before choosing an alternative.

2. Should I replace the whole movement or buy individual parts?

It depends on the fault, component availability, repair cost and whether preserving the original movement matters. A watchmaker can assess whether servicing, replacing an internal component or installing a complete movement is the better option. Sofly supplies both complete movements and individual repair parts.

3. Are all watch movements genuine or original?

Movement origin depends on the product. Genuine movements and compatible alternatives are not the same. Check each listing for manufacturer, caliber and available origin details. If original branded packaging or manufacturer provenance matters, contact us before ordering.

4. Can I buy a single movement or order in bulk?

Sofly supports individual purchases and quantity enquiries for workshop stock or small-batch assembly. Discounts are available on selected products. Share the exact calibers, required variants and quantities so we can confirm availability and applicable pricing.

5. Do you ship watch movements internationally?

Yes. Sofly ships internationally from China. Shipping options, costs and delivery times depend on the destination and order details. Refer to our shipping policy for more information.

Have a caliber in mind? Browse the movements above. For replacement checks or quantity enquiries, send Sofly your movement reference and project requirements.